Theme Options not working

Hello, i’m currently using version 1.3.9 of the minamaze theme and I have some problems with it.

I recently moved the website to a new domain using the wordpress duplicator plugin. As I was moving it, the duplicator said there were around 53 (I don’t remember the exact number) update caches that had to be emptied or there would be issues. I couldn’t find how to empty the cache since WP Super Cache said it was empty and I didn’t find any other way to empty it. So I went ahead and duplicated the website anyway.

The whole package works fine on the new domain from what I can see, except for one issue with the minamaze theme. Whenever I bring up the theme options in the theme customizer, I can’t actually do any changes. None of the buttons work and any changes I do in text (like custom CSS) don’t change anything (the save changes button at the top always says “saved”). I’ve tried uninstalling and reinstalling the theme but the issue remains. The theme options in other customizers work fine though, such as changing the layout of sidebars.

I did notice something strange when I logged in with the wrong credentials though, some error messages appeared above the login field.

Screenshot

These lines contain the following:

Line 74
Line 158-160
Line 485

I heard something about a way to “flush” changes but I don’t know if that would fix anything.

Website: https://www.alla-tiders.se/